Calculator Description
This online engineering calculator computes the actual bending and shear stresses and allowable bending and shear stresses for a wood sawn lumber member in bending and shear according to the National Design Specification for Wood Construction 2015 (NDS 2015)
Calculator Link
Input Parameters
Bending Moment, M
Maximum Shear Load, V
Member Width, b
Member Depth, d
Load Duration Factor, Cd – NDS 2015, Section 4.3.2
Wet Service Condition Factor, Cm – NDS 2015, Section 4.3.3
Temperature Factor, Ct – NDS 2015, Section 4.3.4
Beam Stability Factor, CL – NDS 2015, Section 4.3.5
Size Factor, CF – NDS 2015, Section 4.3.6
Flat Use Factor, Cfu – NDS 2015, Section 4.3.7
Incising Factor, Ci – NDS 2015, Section 4.3.8
Repetitive Member Factor, Cr – NDS 2015, Section 4.3.9
Reference Bending Stress, Fb – NDS Supplement 2015
Reference Shear Stress Parallel to grain, Fv – NDS Supplement 2015
Output Parameters
Cross-Sectional Area, A
Section Modulus, Sx
Actual Bending Stress, fb
Actual Maximum Shear Stress, fv
Allowable Bending Stress, Fb‘ – NDS 2015 Table 4.3.1
Allowable Shear Stress Parallel to Grain, Fv‘ – NDS 2015 Table 4.3.1
Bending Check
Shear Check